Implement Guid.NewGuid

[jp2masa]

The current implementation of Guid.NewGuid returns an empty Guid, but we should return a version 4 Guid.
Where to implement: https://github.com/CosmosOS/Cosmos/blob/master/source/Cosmos.System.Plugs/System/GuidImpl.cs#L10
How to implement: https://www.cryptosys.net/pki/uuid-rfc4122.html

[zarlo]

i will have a crack at it

[j4cobgarby]

How does the Guid constructor work? What are the eleven different numbers? I thought GUIDs were, according to this website,

[GUIDs are] blocks of 8, 4, 4, 4 and 12 hex digits

[j4cobgarby]

It's quite easy to generate a GUID in C# though

[jp2masa]

It uses native code.

[j4cobgarby]

Oh, I'll have a look at making my own implementation then

[jp2masa]

There's already a PR for this.

[j4cobgarby]

Okay nevermind then

[Arawn-Davies]

Will be fixed by #670, got an issue about System.Random not being plugged.